Clinical and pathologic characteristics of lumbar disk herniation in the elderly

The clinical and pathologic characteristics of lumbar disk herniation in 23 elderly patients (15 men and 8 women) who required surgical treatment were investigated. Average age at surgery was 67.3 years, and average follow-up was 23 months. Preoperatively, the predominant symptom was severe unilater al leg pain, and 13 patients were nonambulatory because of leg pain. Operative treatment included wide laminectomy in 8, hemilaminectomy in 3, f enestration in 10, and osteoplastic laminectomy in 2 patients. Four (17%) p atients had disk herniation at the L2-L3 or L3-L4 level. Sequestered hernia tion with or without migration was observed in 15 (65%) patients. Of 14 seq uestered disk fragments examined histologically, 8 (57%) specimens containe d cartilaginous or bony end plate with anulus fibrosus or nucleus pulposus. Postoperatively, results were rated as excellent in 11 patients and good i n 12; no patient was rated as fair or poor. Severe leg pain affecting activities of daily life is a predominant symptom of disk herniation in the elderly. For patients in whom conservative treat ment has failed, operative treatment should be considered. In lumbar disk h erniation in the elderly, the incidence of cephalad and lateral herniation is higher than in younger patients. In addition, sequestered and migrated h erniations including end plate are frequent.